---
product_id: 441210269
title: "Kensington Pro Fit™ Ergo Vertical Wired Trackball Mouse, Easy Thumb Control, Precision and Smooth Tracking, Ergonomist-Approved Design and Ambidextrous for Windows, PC and Mac (Black)"
brand: "kensington"
price: "$150.58"
currency: USD
in_stock: true
reviews_count: 6
category: "Kensington"
url: https://www.desertcart.us/products/441210269-kensington-pro-fit-ergo-vertical-wired-trackball-mouse-easy-thumb
store_origin: US
region: United States of America
---

# 800 DPI precision Easy-clean ejectable trackball Secure wired USB connection Kensington Pro Fit™ Ergo Vertical Wired Trackball Mouse, Easy Thumb Control, Precision and Smooth Tracking, Ergonomist-Approved Design and Ambidextrous for Windows, PC and Mac (Black)

**Brand:** kensington
**Price:** $150.58
**Availability:** ✅ In Stock

## Summary

> 🎯 Elevate your workspace with precision and comfort that keeps you ahead of the curve.

## Quick Answers

- **What is this?** Kensington Pro Fit™ Ergo Vertical Wired Trackball Mouse, Easy Thumb Control, Precision and Smooth Tracking, Ergonomist-Approved Design and Ambidextrous for Windows, PC and Mac (Black) by kensington
- **How much does it cost?** $150.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/441210269-kensington-pro-fit-ergo-vertical-wired-trackball-mouse-easy-thumb)

## Best For

- kensington enthusiasts

## Why This Product

- Trusted kensington brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Maintenance:** Unique eject button lets you clean the trackball in seconds—no special tools needed.
- • **Ambidextrous & SmartFit:** Perfect fit for average to larger hands, supporting both left and right users with ergonomic ease.
- • **Ergonomist-Approved Comfort:** Designed to align wrist, arm & shoulder for all-day strain-free productivity.
- • **Plug & Play or Pro Customize:** Use default settings or unlock 9 programmable buttons with KensingtonWorks software for ultimate efficiency.
- • **Precision at Your Fingertips:** Switch DPI settings effortlessly for smooth, accurate cursor control tailored to your workflow.

## Overview

The Kensington Pro Fit Ergo Vertical Wired Trackball Mouse combines ergonomist-approved design with premium 800 DPI precision and a secure wired USB connection. Featuring an easy-to-clean ejectable trackball and nine customizable buttons, it offers seamless plug-and-play functionality or advanced personalization via KensingtonWorks software. Ambidextrous and designed for larger hands, this mouse reduces strain and boosts productivity for Windows and Mac professionals seeking comfort and control.

## Description

Product Description Kensington Pro Fit Ergo Vertical Wired Trackball - K75256WW Kensington Pro Fit Ergo Vertical Wired Trackball Scroll ring allows fast, easy scrolling of web pages and documents Unique Easy-to-Clean Design Features a button to eject the trackball for easy cleaning. Secure Wired Connection Never worry about batteries or wireless interference Easy to Use Reduces learning curve when transitioning from a mouse to a trackball. Ergonomist-Approved Design Promotes proper wrist, arm, and shoulder alignment to maximize comfort and minimize potential strains. Premium Precision and Speed Provides more accurate and smooth cursor control, and allows you to easily switch between DPI settings for different cursor speed control. Plug and Play or Customize Use the default settings or download Kensington Works software to set pointer and scrolling options and professionally customize nine buttons to tackle common tasks with one touch.

Review: Nice feel in hand - Super comfortable. The ball catches a glitch once in a while, but sails smooth once we clean it with simple cloth, no special treatment required to regain that smoothness. Build quality is good. Best value for money. Fine controls. You can customise some buttons if you want but that's not without it's limitations.
Review: PARA MI ES UNA HERRAMIENTA SUPER IMPORTANTE YA QUE ME EVITA DOLORES EN MI MANO - ES UNA HERRAMIENTA MUY COMODA, YO PASO MUCHO TIEMPO EN LA COMPUTADORA Y EL DOLOR EN MI MANO Y BRAZO ERA MUY CONSTANTE, CON ESTE MOUSE SE HA REDUCIDO MUCHO LA FATIGA QUE SENTIA.

## Features

- Ergonomist-Approved Design: Promotes proper wrist, arm, and shoulder alignment to maximize comfort and minimize potential strains; Easy to Use: Reduces learning curve when transitioning from a mouse to a trackball.
- Premium Precision and Speed: Provides more accurate and smooth cursor control, and allows you to easily switch between DPI settings for different cursor speed control.
- Secure Wired Connection: Never worry about batteries or wireless interference: Unique Easy-to-Clean Design: Features a button to eject the trackball for easy cleaning.
- Plug and Play or Customize: Use the default settings or download KensingtonWorks software to set pointer and scrolling options and professionally customize nine buttons to tackle common tasks with one touch. *Windows ARM-based computers are currently not supported. Please check back for future updates on compatibility.
- SmartFit - Comfort Made Easy: This product is designed to comfortably fit users with average to larger sized hands; Limited 3-year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08QC9NFM9 |
| Antenna Location | Office |
| Are Batteries Included? | No |
| Are Batteries Required | No |
| Battery Average Life | 12 Months |
| Best Sellers Rank | #78,211 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #15 in Trackballs |
| Box Contents | vertical trackball |
| Brand | Kensington |
| Brand Name | Kensington |
| Button Quantity | 9 |
| Colour | Black |
| Compatible Devices | Personal Computer, Laptop |
| Connectivity Technology | USB |
| Country of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 185 Reviews |
| EU Spare Part Availability Duration | 3 Years |
| Enclosure Material | Plastic |
| Global Trade Identification Number | 00085896752561 |
| Hand Orientation | Ambidextrous |
| Hardware Platform | Mac, PC |
| Importer Contact Information | Interface Connectronics Pvt Ltd, # 85, Unit # 3, First Floor V.V.Yoga Saurabha, S.C.Road, Yeshwanthpur, Bangalore, India 560022, Contact: +91-9739952969, sales@icpl.co.in |
| Item Dimensions L x W | 7.6L x 20W Centimeters |
| Item Type Name | Trackball |
| Item Weight Unit of Measure | 0.2 Kilograms |
| Manufacturer | ACCO Brands Asia Pte Ltd, 2 International Business Park Tower 2 #05-31/32, The Strategy, Singapore 609930, Contact: +65-67760195, singapore.webmaster@acco.com, Kensington |
| Manufacturer Contact Information | ACCO Brands Asia Pte Ltd, 2 International Business Park Tower 2 #05-31/32, The Strategy, Singapore 609930, Contact: +65-67760195, singapore.webmaster@acco.com |
| Manufacturer Part Number | K75256WW |
| Minimum Required Operating System Version | Mac OS 10.13 High Sierra |
| Model Name | Pro Fit Ergo |
| Model Number | K75256WW |
| Mouse Maximum Sensitivity | 800 Dots per Inch |
| Movement Detection | Trackball |
| Movement Detection Technology | Trackball |
| Network Connectivity Technology | USB |
| Number of Buttons | 9 |
| Operating System | Chrome OS, Mac OS 10.13 High Sierra, Windows 8 |
| Packer Contact Information | Interface Connectronics Pvt Ltd, # 85, Unit # 3, First Floor V.V.Yoga Saurabha, S.C.Road, Yeshwanthpur, Bangalore, India 560022, Contact: +91-9739952969, sales@icpl.co.in |
| Pattern | Trackball |
| Power Source | Corded Electric |
| Product Features | Wireless |
| Range | 10.0 meters |
| Special Feature | Wireless |
| Style Name | Wired |
| Theme | Video Game |
| UPC | 085896752561 |
| Unit Count | 1 Count |
| Warranty Description | Limited 3 year warranty |

## Product Details

- **Brand:** Kensington
- **Colour:** Black
- **Connectivity Technology:** USB
- **Special Feature:** Wireless
- **Movement Detection Technology:** Trackball

## Images

![Kensington Pro Fit™ Ergo Vertical Wired Trackball Mouse, Easy Thumb Control, Precision and Smooth Tracking, Ergonomist-Approved Design and Ambidextrous for Windows, PC and Mac (Black) - Image 1](https://m.media-amazon.com/images/I/81ViCNH6fOL.jpg)
![Kensington Pro Fit™ Ergo Vertical Wired Trackball Mouse, Easy Thumb Control, Precision and Smooth Tracking, Ergonomist-Approved Design and Ambidextrous for Windows, PC and Mac (Black) - Image 2](https://m.media-amazon.com/images/I/81eb0vLsxQL.jpg)
![Kensington Pro Fit™ Ergo Vertical Wired Trackball Mouse, Easy Thumb Control, Precision and Smooth Tracking, Ergonomist-Approved Design and Ambidextrous for Windows, PC and Mac (Black) - Image 3](https://m.media-amazon.com/images/I/8141mQB7f+L.jpg)
![Kensington Pro Fit™ Ergo Vertical Wired Trackball Mouse, Easy Thumb Control, Precision and Smooth Tracking, Ergonomist-Approved Design and Ambidextrous for Windows, PC and Mac (Black) - Image 4](https://m.media-amazon.com/images/I/81FPsiyXrQL.jpg)
![Kensington Pro Fit™ Ergo Vertical Wired Trackball Mouse, Easy Thumb Control, Precision and Smooth Tracking, Ergonomist-Approved Design and Ambidextrous for Windows, PC and Mac (Black) - Image 5](https://m.media-amazon.com/images/I/810Cf8hikfL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: will it work with mac os 10.10 yosemite?**
A: I use it daily on Catalina (10.15) and Big Sur (11.0 and now 11.5)  The initial upgrade to Big Sur was slightly painful with the KensingtonWorks software, but they claim support for versions much earlier than Yosemite, so it should work.  Just don't count on a smooth process if you ever bring yourself up to date.

**Q: Any plans for the same mouse without the track ball?**
A: search for ergonomic mouse instead of ergonomic trackball

**Q: Is there a white wired version?**
A: I'm sorry that we only have black version for Pro Fit Ergo Vertical Trackball.

The Kensington Team

**Q: My hand length is 7 1/2", is it too long for this mouse?**
A: No.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice feel in hand
*by V***D on 21 November 2025*

Super comfortable. The ball catches a glitch once in a while, but sails smooth once we clean it with simple cloth, no special treatment required to regain that smoothness. Build quality is good. Best value for money. Fine controls. You can customise some buttons if you want but that's not without it's limitations.

### ⭐⭐⭐⭐⭐ PARA MI ES UNA HERRAMIENTA SUPER IMPORTANTE YA QUE ME EVITA DOLORES EN MI MANO
*by C***Z on 2 December 2022*

ES UNA HERRAMIENTA MUY COMODA, YO PASO MUCHO TIEMPO EN LA COMPUTADORA Y EL DOLOR EN MI MANO Y BRAZO ERA MUY CONSTANTE, CON ESTE MOUSE SE HA REDUCIDO MUCHO LA FATIGA QUE SENTIA.

### ⭐⭐⭐⭐⭐ Très bien, très agréable en main
*by M***E on 24 October 2024*

Utilisation à titre privé.

## Frequently Bought Together

- Kensington Pro Fit Ergo Vertical Wired Trackball (K75256WW)
- Kensington Pro Fit Ergonomic Wired Keyboard- Black (K75400US)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-15*